Filamentary bipolar electric pulse induced resistance switching in amorphous silicon resistive random access memory

Author(s):  
Rabi Ebrahim ◽  
Ramasahayam Mithun Kumar ◽  
Nacer Badi ◽  
Naijuan Wu ◽  
Alex Ignatiev
2010 ◽  
Vol 1250 ◽  
Author(s):  
Yusuke Nishi ◽  
Tatsuya Iwata ◽  
Tsunenobu Kimoto

AbstractAdmittance spectroscopy measurement has been performed on NiOx thin films with various oxygen compositions (x=1.0-1.2) in order to characterize localized defect levels. The activation energy and concentration of localized defect levels in NiOx films with low oxygen composition (x≤1.07) are 120-170 meV and lower than 2×1019 cm-3, respectively. From I-V measurement of the Pt/NiOx/Pt structures, samples with high oxygen composition (x≥1.10) did not show resistance switching operation, while samples with low oxygen composition (x≤1.07) did. The best oxygen composition of NiOx thin films turned out to be 1.07 in order to realize repeatable and stable resistance switching operation.


2013 ◽  
Vol 533 ◽  
pp. 19-23 ◽  
Author(s):  
T. Cabout ◽  
J. Buckley ◽  
C. Cagli ◽  
V. Jousseaume ◽  
J.-F. Nodin ◽  
...  

2014 ◽  
Vol 21 (05) ◽  
pp. 1450061 ◽  
Author(s):  
HONGXIA LI ◽  
XIAOJUN LV ◽  
JUNHUA XI ◽  
XIN WU ◽  
QINAN MAO ◽  
...  

In this paper, we fabricated Pt / TiO x/ ZnO / n +- Si structures by inserting TiO x interlayer between Pt top electrode (TE) and ZnO thin film for non-volatile resistive random access memory (ReRAM) applications. Effects of TiO x interlayer with different thickness on the resistance switching of Pt / TiO x/ ZnO / n +- Si structures were investigated. Conduction behaviors in high and low resistance state (HRS and LRS) fit well with the trap-controlled space-charge-limited conduction (SCLC) and Ohmic behavior, respectively. Variations of set and reset voltages and HRS and LRS resistances of Pt / TiO x/ ZnO / n +- Si structures were investigated as a function of TiO x thickness. Switching cycling tests were attempted to evaluate the endurance reliability of Pt / TiO x/ ZnO / n +- Si structures. Additionally, the switching mechanism was analyzed by the filament model.


2020 ◽  
Vol 12 (2) ◽  
pp. 02008-1-02008-4
Author(s):  
Pramod J. Patil ◽  
◽  
Namita A. Ahir ◽  
Suhas Yadav ◽  
Chetan C. Revadekar ◽  
...  

Nanomaterials ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1401
Author(s):  
Te Jui Yen ◽  
Albert Chin ◽  
Vladimir Gritsenko

Large device variation is a fundamental challenge for resistive random access memory (RRAM) array circuit. Improved device-to-device distributions of set and reset voltages in a SiNx RRAM device is realized via arsenic ion (As+) implantation. Besides, the As+-implanted SiNx RRAM device exhibits much tighter cycle-to-cycle distribution than the nonimplanted device. The As+-implanted SiNx device further exhibits excellent performance, which shows high stability and a large 1.73 × 103 resistance window at 85 °C retention for 104 s, and a large 103 resistance window after 105 cycles of the pulsed endurance test. The current–voltage characteristics of high- and low-resistance states were both analyzed as space-charge-limited conduction mechanism. From the simulated defect distribution in the SiNx layer, a microscopic model was established, and the formation and rupture of defect-conductive paths were proposed for the resistance switching behavior. Therefore, the reason for such high device performance can be attributed to the sufficient defects created by As+ implantation that leads to low forming and operation power.


2020 ◽  
Vol 128 (21) ◽  
pp. 215702
Author(s):  
Yuehua Dai ◽  
Jianhua Gao ◽  
Lihua Huang ◽  
Renjie Ding ◽  
Peng Wang ◽  
...  

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